CVE-2009-4933 in Ezwebitor
Summary
by MITRE
Multiple SQL injection vulnerabilities in login.php in EZ Webitor allow remote attackers to execute arbitrary SQL commands via the (1) txtUserId (Username) and (2) txtPassword (Password) parameters. NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 05/12/2025
The vulnerability identified as CVE-2009-4933 represents a critical SQL injection flaw within the login.php script of the EZ Webitor web application. This vulnerability resides in the authentication mechanism where user credentials are processed, creating a pathway for malicious actors to manipulate database queries through crafted input parameters. The flaw specifically affects the txtUserId and txtPassword parameters, which are used to capture username and password inputs during the login process. These parameters are directly incorporated into SQL queries without proper sanitization or parameterization, making them prime targets for injection attacks.
The technical nature of this vulnerability aligns with CWE-89, which categorizes SQL injection as a direct result of insufficient input validation and improper query construction. Attackers can exploit this weakness by submitting malicious SQL payloads through the username or password fields, potentially gaining unauthorized access to the underlying database. The vulnerability operates at the application layer where user inputs are concatenated directly into SQL commands, bypassing normal authentication mechanisms. This type of injection allows for various malicious activities including data extraction, modification, or deletion, as well as potential privilege escalation within the database system.
From an operational impact perspective, this vulnerability creates severe security implications for any organization using EZ Webitor. Remote attackers can execute arbitrary SQL commands without authentication, potentially leading to complete database compromise. The attack surface is particularly dangerous because it targets the login functionality, which is frequently accessed and represents a common entry point for attackers. Successful exploitation could result in unauthorized data access, data corruption, or complete system takeover depending on the database permissions. The vulnerability also poses risks to user privacy and organizational data integrity, as attackers could extract sensitive information from the database.
Mitigation strategies for CVE-2009-4933 should prioritize immediate implementation of proper input validation and parameterized queries. Organizations must ensure that all user inputs are sanitized and that database interactions utilize prepared statements or parameterized queries to prevent SQL injection. The application should implement proper authentication mechanisms with input length restrictions and character set validation for login fields. Additionally, access controls should be strengthened through proper database user permissions, ensuring that application accounts have minimal required privileges. Regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other application components, aligning with ATT&CK framework techniques that target credential access and execution through injection attacks. Network segmentation and intrusion detection systems can provide additional layers of protection against exploitation attempts.